Caster



FIG. 1 is a perspective view of the caster according to the invention;

FIG. 2 is a right side elevation view of the caster of FIG. 1;

FIG. 3 is a left side elevation view of the caster of FIG. 1;

FIG. 4 is a front elevation view of the caster according of FIG. 1;

FIG. 5 is a rear elevation view of the caster of FIG. 1;

FIG. 6 is a top plan view of the caster of FIG. 1;

FIG. 7 is a bottom plan view of the caster of FIG. 1; and,

FIG. 8 is a cross-sectional view of the caster through line 8-8 shown in FIG. 4.

The broken line disclosure depicts environmental subject matter only and forms no part of the claimed invention. 

CLAIM The ornamental design for a caster, as shown and described. 